Finding the Fourth Proportional to 2,685.61, 3,703.32 and 2,125.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,685.61 : 3,703.32 = 2,125.18 : x
2. Step 2: Convert to fraction form
   2,685.61/3,703.32 = 2,125.18/x
3. Step 3: Cross multiply
   2,685.61x = 3,703.32 × 2,125.18
4. Step 4: Simplify right side
   2,685.61x = 7,870,221.60
5. Step 5: Solve for x
   x = 7,870,221.60/2,685.61
6. Step 6: Final answer
   x = 2,930.52